package com.v1.video.widgets;

import android.content.Context;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.widget.Gallery;

public class DetialGallery extends Gallery {
	
	public DetialGallery(Context context ,AttributeSet attrSet) {
		super(context,attrSet);
	}
	
	private boolean isScrollingLeft(MotionEvent e1, MotionEvent e2)
	{   
		return e2.getX() > e1.getX(); 
	}
	
	@Override
	public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
			float velocityY) {
		// TODO Auto-generated method stub
		//  return super.onFling(e1, e2, 0, velocityY);//方法一：只去除翻页惯性
		//  return false;//方法二：只去除翻页惯性  注：没有被注释掉的代码实现了开始说的2种效果。
		int kEvent;  
		if(isScrollingLeft(e1, e2)){ 
			//Check if scrolling left     
			kEvent = KeyEvent.KEYCODE_DPAD_LEFT;  
		}  else{ 
			//Otherwise scrolling right    
			kEvent = KeyEvent.KEYCODE_DPAD_RIGHT;   
		}  
		onKeyDown(kEvent, null);  
		return true;  
	}
	
}
